That is possible.
We've seen other reports that Firefox tries to sync bookmarks changes too quickly.
You can try to exclude the bookmarks from syncing to see if that helps.

Cor-el,

Thanks for the acknowledgement. So far, only one person responded to the question, which makes me wonder if... 1) Not many people use Firefox Sync, or 2) Our experience is a rarity.

Excluding bookmarks from syncing would eventually mitigate the benefit of syncing.

I perused the about:config page and noticed several parameters, which seem to influence the syncing schedule. Not knowing the consequence of tampering with those settings, I hesitated in the hopes that someone would share his or her solution.

As a matter of fact, if the Mozilla "powers that be" were monitoring these posts, I would hope they would take notice and render a fix. In the least, I would like a manual override option; to disable the syncing until I was done shuffling my bookmarks.

Better yet, is to not allow syncing until the browser was closed, or the "Sync Now" option is selected.

Regards, Bryan

I have the same problem. In reply to BryanOB post, I guess many people noticed lag in editing bookmarks, just not everyvody noticed, that is caused by sync. Excluding bookmarks from syncing helps, but this is not the correct fix.

By default, Sync has a 10 minute update interval when you have more than 1 device paired. If Sync detects changes made on a different device, then it does the next sync in 90 seconds. Once that has finished, the update interval should be set back to 10 minutes.

If you think Sync could be repeatedly synchronizing changes from another device that don't exist, you could extend the interval for that type of sync so it, too, doesn't happen for 10 minutes. To do that, you can use the about:config preferences page.

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste scheduler and pause while the list is filtered

(3) Double-click services.sync.scheduler.immediateInterval and enter 600 as the value. OK that.

Notice any changes??

jscher2000, thank you for your suggestion.

I modified the services.sync.scheduler.immediateInterval parameter to 600. I noticed no change, so I returned the parameter value to 90.

Let me clarify my experience some more.

All of my bookmarks are organized in a folder tree. Whenever I initially save bookmarks, I put them in the Unsorted Bookmarks folder, for later sorting.

I now want to organize them into their respective folder categories, so I drag from the unsorted pool, to the said folder.

Each time I perform a task like that, moving, sorting or deleting, I experience approx a 5 second delay. So, I drag a link to a folder, I must wait approx 5 seconds before that action was acknowledged.

Note: I experience the same behavior with my laptop (Win7 Pro), which is synced to my desktop (XP Pro)

I hope that helps narrow the focus on the issue at hand. Regards, Bryan

Hi Bryan, I wonder whether you could perform an experiment, and that is to compare the performance of re-organizing bookmarks while disconnected from the internet. Is it noticeably faster? I'm not sure whether Firefox's "Work Offline" feature is enough to test this effectively, or whether you have to actually pull the cable (or disable the radio, as the case may be).

BINGO!!! That's it then.

I disabled the Internet connection, and did the usual drag and drop, with no delays whatsoever. You may have something there, jscher2000. But, what does it mean?

Well, it points to some kind of network-related latency, and Sync certainly is the prime suspect.

Does it make any difference if you use the Move dialog instead of dragging? Highlight the bookmark, then use Organize > Move to select the destination folder. (I would expect no difference, actually. I don't think Sync cares about how the change was made.)

You might want to try one of the database utilities for grooming your places database which stores bookmarks and history. Before doing that, please make a backup of your current settings folder (Firefox profile folder) "just in case." See Back up and restore information in Firefox profiles. (You can copy your entire Firefox profile folder somewhere outside of the Mozilla folder.)

I've seen different ones suggested, but having never tried any of them myself, I will refrain from providing random links and let another volunteer make the suggestions.

I tried as you suggested, using Organize > Move, to select the destination folder. But, just as you suspected, it made no difference.

I installed the Vacuum Places add-on, but it didn't make any difference whatsoever. I really do not think the problem has anything to do with the degree of disorganization in my library.

I'm inclined to agree with you, that the problem might be related to latency with the sync-server. Furthermore, I don't believe that my home network has a significant latency issue. I have a gigabit connection to my cable modem. I pinged several websites and the average round-trip times seemed reasonable. If I knew the sync-server's URL I could try pinging that too.

Anyway, it seems to me that the moment I make a change to the bookmarks library, Firefox immediately goes onto the web, for what ever reason, thereby causing the lag. That fact was proven when I disconnected the Internet.

Just a small notice from many tests: it's firefox sync causing lags. I've also tested this on many PC machines. My bookmarks .json file is 2,3Mb, but if I exlcude bookmarks from sync, all lags are gone.

dardarlt, thanks for your comments and acknowledgement of the issue.

I still find it very strange that there aren't more complaints about this matter. Perhaps, not many people use the sync feature. Anyway, the idea of excluding bookmarks from sync, goes against my main reason for it. The only gripe I have with sync is the behavior I described earlier...

"the moment I make a change to the bookmarks library, Firefox immediately goes onto the web, for what ever reason, thereby causing the lag"

I wish I knew of a parameter in about:config that could stop that behavior. Perhaps, this might be a good candidate for a future update. Is anyone from the software development team monitoring this thread?

So version 15 its out, but problem still remains. Maybe someone could post it to bugzilla?

You're are right dardarlt! Version 15 doesn't fix the problem. This entry is just to let everyone know that I filed a bug report with Bugzilla. Bug Report # 787500

No let's see what the "powers that be" do with it. :)